Sony Portable CD Player CDX GT280 User Manual

4-108-797-31(1)  
1
2
*
*
RCA pin cord (not supplied)  
AUDIO OUT can be switched SUB or REAR.  
For details, see the supplied Operating  
Instructions.  
3
*
Insert with the cord upwards.  
A
1
*
REMOTE  
IN  
REAR/SUB  
AUDIO OUT  
3
*
L
R
FM/MW/SW  
REAR/SUB  
AUDIO OUT  
from car antenna (aerial)  
REAR/SUB  
Compact Disc Player  
Fuse (10 A)  
2
AUDIO OUT  
*
Blue/white striped  
AMP REM  
Max. supply current 0.3 A  
3
White  
Black  
Blue  
Left  
Right  
Left  
1
2
White/black striped  
Gray  
ANT REM  
Max. supply current 0.1 A  
Gray/black striped  
Green  
REAR/SUB  
AUDIO OUT  
Red  
4
5
Green/black striped  
Purple  
Installation/Connections  
Yellow  
Right  
CDX-GT280S  
Purple/black striped  
CDX-GT280  
©2008 Sony Corporation Printed in Thailand  
Cautions  
Connection diagram  
• This unit is designed for negative ground (earth) 12 V  
DC operation only.  
• Do not get the leads under a screw, or caught in moving  
parts (e.g. seat railing).  
• Before making connections, turn the car ignition off to  
avoid short circuits.  
• Connect the yellow and red power input leads only  
after all other leads have been connected.  
Run all ground (earth) leads to a common  
ground (earth) point.  
• Be sure to insulate any loose unconnected leads with  
electrical tape for safety.  
To a metal surface of the car  
First connect the black ground (earth) lead, then connect the  
yellow, and red power supply leads.  
To the power antenna (aerial) control lead or  
power supply lead of antenna (aerial) booster  
amplifier  
Notes  
It is not necessary to connect this lead if there is no power  
antenna (aerial) or antenna (aerial) booster, or with a  
manually-operated telescopic antenna (aerial).  
When your car has a built-in FM/MW/SW antenna (aerial)  
in the rear/side glass, see “Notes on the control and power  
supply leads.”  
To AMP REMOTE IN of an optional power  
Notes on the power supply lead (yellow)  
• When connecting this unit in combination with other  
stereo components, the connected car circuit’s rating  
must be higher than the sum of each component’s fuse.  
• When no car circuits are rated high enough, connect  
the unit directly to the battery.  
amplifier  
× 2  
This connection is only for amplifiers. Connecting any other  
system may damage the unit.  
To the +12 V power terminal which is  
energized in the accessory position of the  
ignition key switch  
Notes  
If there is no accessory position, connect to the +12 V  
power (battery) terminal which is energized at all times.  
Be sure to connect the black ground (earth) lead to a  
metal surface of the car first.  
When your car has a built-in FM/MW/SW antenna (aerial)  
in the rear/side glass, see “Notes on the control and power  
supply leads.”  
Parts Iist  
• The numbers in the list are keyed to those in the  
instructions.  
• The bracket and the protection collar are  
attached to the unit before shipping. Before mounting  
the unit, use the release keys to remove the bracket  
from the unit. For details, see “Removing the  
protection collar and the bracket ()” on the reverse  
side of the sheet.  
Keep the release keys for future use as they  
are also necessary if you remove the unit from  
your car.  
× 4  
To the +12 V power terminal which is  
energized at all times  
Be sure to connect the black ground (earth) lead to a metal  
surface of the car first.  
Notes on the control and power supply leads  
The power antenna (aerial) control lead (blue) supplies +12 V  
DC when you turn on the tuner.  
When your car has built-in FM/MW/SW antenna (aerial) in the  
rear/side glass, connect the power antenna (aerial) control  
lead (blue) or the accessory power supply lead (red) to the  
power terminal of the existing antenna (aerial) booster. For  
details, consult your dealer.  
Caution  
Equipment used in illustrations (not supplied)  
Handle the bracket carefully to avoid injuring your  
A power antenna (aerial) without a relay box cannot be used  
with this unit.  
fingers.  
Memory hold connection  
When the yellow power input lead is connected, power will  
always be supplied to the memory circuit even when the ignition  
switch is turned off.  
Notes on speaker connection  
Before connecting the speakers, turn the unit off.  
Use speakers with an impedance of 4 to 8 ohms, and with  
adequate power handling capacities to avoid its damage.  
Do not connect the speaker terminals to the car chassis, or  
connect the terminals of the right speakers with those of the  
left speaker.  
Do not connect the ground (earth) lead of this unit to the  
negative (–) terminal of the speaker.  
Do not attempt to connect the speakers in parallel.  
Connect only passive speakers. Connecting active speakers  
(with built-in amplifiers) to the speaker terminals may damage  
the unit.  
Power amplifier  
Front speaker  
Rear speaker  
Catch  
Note  
Before installing, make sure that the catches on both sides of  
the bracket are bent inwards 2 mm (3/32 in). If the catches are  
straight or bent outwards, the unit will not be installed securely  
and may spring out.  
Rotary commander RM-X4S  
To avoid a malfunction, do not use the built-in speaker leads  
installed in your car if the unit shares a common negative (–)  
lead for the right and left speakers.  
Connection example  
Do not connect the unit’s speaker leads to each other.  
Notes (-  
)
A
Note on connection  
Be sure to connect the ground (earth) lead before connecting  
If speaker and amplifier are not connected correctly, FAILURE”  
appears in the display. In this case, make sure the speaker and  
amplifier are connected correctly.  
the amplifier.  
The alarm will only sound if the built-in amplifier is used.  
Active subwoofer  
 

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